MSK 4 - Exam #2 Questions With Complete Solutions
10% of supracondylar fractures cause a nerve injury. What nerve
is affected most? Correct Answers radial > median > ulnar
A Bishop's / benediction hand deformity would indicate a PNI
where? Correct Answers ulnar n
A claw / intrinsic minus hand deformity would indicate a PNI
where? Correct Answers combined median and ulnar n
A gunstock deformity is an indication of what? Correct
Answers supracondylar fracture
A pt. presents having just sustained an injury resulting in an
interruption of the central slip of the extensor tendon. What
deformity? Correct Answers Boutonniere deformity
- occurs in zone III-IV of extensors
A score of what on the Beighton hypermobility scale is an
indicator of generalized joint hypermobility? Correct Answers
4 or higher
a superficial radial nerve entrapment that causes numbness of
the anatomical snuffbox throughout the dorsum of the hand and
would not be motion dependent. Correct Answers wartenburg's
syndrome
A wrist drop deformity would indicate a PNI where? Correct
Answers radial nerve
,An ape hand deformity would indicate a PNI where? Correct
Answers median n
avulsion fracture of distal phalanx or wear of ED at DIP Correct
Answers mallet finger(ext.zone1)
buckle fracture that occurs when the bony cortex is compressed
and fails, but does not extend into the traction side of the bone
Correct Answers torus fracture
- different from greenstick because compression side fails (not
traction side)
- often occurs during falls on hand in children
condition characterized by medial instability / valgus stress;
associated with throwing injuries to the UCL (mainly anterior
band) usually in children and adolescents Correct Answers
radiocapitellar pathology
- compression injury, secondary to medial instability
- MOI usually includes a pop, sudden pain, tearing, and/or
change in throwing velocity or accuracy
Condition that causes pain over the lateral forearm and pain with
wrist, 2nd digit, and 3rd digit extension but no weakness
Correct Answers radial tunnel syndrome
- caused by compression at proximal border of supinator / arcade
of Froshe
- treat with lateral elbow tendinopathy tx approach as well as
radial nerve mobilizations
, Condition that causes pain over the lateral forearm and pain with
wrist, 2nd digit, and 3rd digit extension with weakness present
Correct Answers posterior interosseous nerve entrapment
- PIN iis purely motor
condition with clicking and snapping, instability sensation with
ext/supinated positions; radial head dislocates posteriorly with
full/excessive supination due to varus instability / lateral UCL
complex disruption Correct Answers posterolateral rotatory
instability
Describe Frykman's classification Correct Answers - describes
wrist fractures
- higher the number (1-8), worse prognosis
- even number means there is an ulnar fracture involved
disease affecting a single nerve Correct Answers
mononeuropathy
- polyneuropathies are multiple nerve involvement
distal or middle radius fracture with dislocation of the distal ulna
at the wrist; typically occurs when FOOSH Correct Answers
galeazzi fracture
encompasses the axon or nerve fiber; important role in
protecting against transmission of substances across the blood-
nerve barrier Correct Answers endoneurium
flexion of the IP of the thumb when a lateral pinch is attempted
(have pt. grab paper) Correct Answers Froment's sign
--> rules up compression at guyon's canal
10% of supracondylar fractures cause a nerve injury. What nerve
is affected most? Correct Answers radial > median > ulnar
A Bishop's / benediction hand deformity would indicate a PNI
where? Correct Answers ulnar n
A claw / intrinsic minus hand deformity would indicate a PNI
where? Correct Answers combined median and ulnar n
A gunstock deformity is an indication of what? Correct
Answers supracondylar fracture
A pt. presents having just sustained an injury resulting in an
interruption of the central slip of the extensor tendon. What
deformity? Correct Answers Boutonniere deformity
- occurs in zone III-IV of extensors
A score of what on the Beighton hypermobility scale is an
indicator of generalized joint hypermobility? Correct Answers
4 or higher
a superficial radial nerve entrapment that causes numbness of
the anatomical snuffbox throughout the dorsum of the hand and
would not be motion dependent. Correct Answers wartenburg's
syndrome
A wrist drop deformity would indicate a PNI where? Correct
Answers radial nerve
,An ape hand deformity would indicate a PNI where? Correct
Answers median n
avulsion fracture of distal phalanx or wear of ED at DIP Correct
Answers mallet finger(ext.zone1)
buckle fracture that occurs when the bony cortex is compressed
and fails, but does not extend into the traction side of the bone
Correct Answers torus fracture
- different from greenstick because compression side fails (not
traction side)
- often occurs during falls on hand in children
condition characterized by medial instability / valgus stress;
associated with throwing injuries to the UCL (mainly anterior
band) usually in children and adolescents Correct Answers
radiocapitellar pathology
- compression injury, secondary to medial instability
- MOI usually includes a pop, sudden pain, tearing, and/or
change in throwing velocity or accuracy
Condition that causes pain over the lateral forearm and pain with
wrist, 2nd digit, and 3rd digit extension but no weakness
Correct Answers radial tunnel syndrome
- caused by compression at proximal border of supinator / arcade
of Froshe
- treat with lateral elbow tendinopathy tx approach as well as
radial nerve mobilizations
, Condition that causes pain over the lateral forearm and pain with
wrist, 2nd digit, and 3rd digit extension with weakness present
Correct Answers posterior interosseous nerve entrapment
- PIN iis purely motor
condition with clicking and snapping, instability sensation with
ext/supinated positions; radial head dislocates posteriorly with
full/excessive supination due to varus instability / lateral UCL
complex disruption Correct Answers posterolateral rotatory
instability
Describe Frykman's classification Correct Answers - describes
wrist fractures
- higher the number (1-8), worse prognosis
- even number means there is an ulnar fracture involved
disease affecting a single nerve Correct Answers
mononeuropathy
- polyneuropathies are multiple nerve involvement
distal or middle radius fracture with dislocation of the distal ulna
at the wrist; typically occurs when FOOSH Correct Answers
galeazzi fracture
encompasses the axon or nerve fiber; important role in
protecting against transmission of substances across the blood-
nerve barrier Correct Answers endoneurium
flexion of the IP of the thumb when a lateral pinch is attempted
(have pt. grab paper) Correct Answers Froment's sign
--> rules up compression at guyon's canal
